CN201858289U - Brake bottom plate and brake bottom plate component - Google Patents
Brake bottom plate and brake bottom plate component Download PDFInfo
- Publication number
- CN201858289U CN201858289U CN2010205825703U CN201020582570U CN201858289U CN 201858289 U CN201858289 U CN 201858289U CN 2010205825703 U CN2010205825703 U CN 2010205825703U CN 201020582570 U CN201020582570 U CN 201020582570U CN 201858289 U CN201858289 U CN 201858289U
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- China
- Prior art keywords
- bottom board
- hole
- braking bottom
- axle housing
- crossbeam
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Abstract
Disclosed are a brake bottom plate and a brake bottom plate component. The brake bottom plate comprises a body (31), the body is provided with a central mounting hole (32), and a flange is formed on the edge of the central mounting hole, extends around the edge of the central mounting hole and protrudes along a direction parallel to the central axis of the central mounting hole. The brake bottom plate component includes the brake bottom plate and a crossbeam or axle housing (100), the crossbeam or axle housing (100) penetrates through the brake bottom plate and is assembled with the brake bottom plate, the crossbeam or axle housing extends to penetrate through the central mounting hole of the brake bottom plate with the above structure, and the flange mutually matches with the outer surface of the crossbeam or axle housing. The flange in the brake bottom plate can increase connecting area of the brake bottom plate with the axle housing or crossbeam, and further more reliable connection of the brake bottom plate with the axle housing or crossbeam is realized.
Description
Technical field
The utility model relates to drum brake, particularly, relates to the braking bottom board and the braking bottom board assembly of drum brake.
Background technique
The break that is used for automobile is divided into drum brake and disk type braker usually, and wherein, drum brake is owing to advantage simple in structure and with low cost is used widely.
The basic structure of drum brake as shown in Figure 1.Braking bottom board 5 is fixedly mounted on axle housing flange or the knuckle, 1, two brake shoe of adjustment screw 11,12 is installed in the bottom of braking bottom board 5 is installed on the braking bottom board 5 by adjusting screw 1 and lock-nut 3.Braking bottom board 5 middle parts are equipped with brake shoe carriage 4, with the axial position of restriction brake shoe.The upper end of brake shoe is connected on the brake shoe by return spring 10.On the periphery of brake shoe, be provided with friction plate 8.The brake drum (not shown) is fixedly mounted on the hub for vehicle wheel, rotates with wheel.
When braking, two brake shoes 11,12 open to inner rotary around the axis of separately adjustment screw 1 under the effect of wheel cylinder, be pressed against on the brake drum, thereby produce braking moment between brake shoe and brake drum, so that wheel is played braking action.When brake off, two brake shoes return to the home position under the effect of return spring 10, thus brake off.
Concise and to the point description by above structure to drum brake as can be known, braking bottom board is the important spare part of drum brake.In drum brake, in fact braking bottom board as the installation basis of each parts, therefore, requires braking bottom board to have relatively large structural rigidity, to realize that it is as the function that the basis is installed.
Traditional braking bottom board by as shown in Figure 2 structure and be assembled together with axle housing (or crossbeam).As shown in Figure 2, be formed with adpting flange 101 on axle housing 100, this axle housing 100 passes braking bottom board, and utilizes bolt and braking bottom board is fixed on the axle housing 100 by adpting flange 101.
Yet, traditional braking bottom board is with the defective of the linkage structure of axle housing (or crossbeam): fixedly connected because traditional braking bottom board is mainly gone up integrally formed adpting flange by bolt with axle housing (or crossbeam), therefore braking bottom board bore various power and moment mainly pass to axle housing (or crossbeam) by above-mentioned bolt, yet the force-bearing situation of braking bottom board is comparatively abominable and the intensity relative deficiency of Bolt Connection, therefore after use after a while, above-mentioned Bolt Connection appearance displacement or the possibility that lost efficacy are relatively large, thereby have a strong impact on the normal use of break.
In view of this, how reliably braking bottom board and axle housing (or crossbeam) are assembled together and become problem demanding prompt solution in related domain.
The model utility content
Thereby providing, the purpose of this utility model a kind ofly can save braking bottom board and the braking bottom board assembly that material reduces cost.
According to an aspect of the present utility model, a kind of braking bottom board is provided, this braking bottom board comprises body, this body has center mounting hole, edge at this center mounting hole is formed with flange, and this flange extends also outstanding along the central axial direction that is parallel to described center mounting hole around the edge of described center mounting hole.
Preferably, described body has the support pin-and-hole of the central axis that deviates from described center mounting hole, and described braking bottom board comprises the stiffening plate with through hole, and this stiffening plate is fixedly installed on the described body, so that described through hole is aimed at described support pin-and-hole.
Preferably, described support pin-and-hole and with described through hole that this support pin-and-hole is aimed in be provided with lining, this lining is fixed on the hole wall of described support pin-and-hole and described through hole.
Preferably, described body has the cam supported hole of the central axis that deviates from described center mounting hole, and described braking bottom board comprises the cam supporting base with through hole, and this cam supporting base inserts in the described cam supported hole and with described body fixedlys connected.
Preferably, the outer contour shape of described body is oval.
Preferably, described support pin-and-hole and cam supported hole are positioned on the described oval-shaped long axis direction.
Preferably, described body has around the equally distributed attachment hole of described center mounting hole.
Preferably, described body is formed by metallic plate punching, and the thickness of described body is 4 millimeters to 10 millimeters.
According on the other hand of the present utility model, a kind of braking bottom board assembly is provided, this braking bottom board assembly comprises braking bottom board and the crossbeam or the axle housing that are assembled together with this braking bottom board, wherein, described braking bottom board is an above-mentioned braking bottom board provided by the utility model, described crossbeam or axle housing extend through the described center mounting hole of described braking bottom board, and the outer surface of described flange and described crossbeam or axle housing cooperatively interacts.
Preferably, the described flange of described braking bottom board is welded on the outer surface of described crossbeam or axle housing; Perhaps, described crossbeam or axle housing have adpting flange, and described braking bottom board is assembled on described crossbeam or the axle housing by this adpting flange.
Compare with the braking bottom board of traditional circular external frame, in braking bottom board provided by the utility model, be provided with along the outstanding flange of the central axial direction that is parallel to described center mounting hole at the edge of center mounting hole.Therefore, when with center mounting hole and axle housing or the crossbeam when being assembled together of this braking bottom board by having flange, the existence of flange can increase the area that is connected between braking bottom board and axle housing or the crossbeam, improve the stress of braking bottom board (body) at center mounting hole place and axle housing or crossbeam, and then obtain to be connected more reliably between braking bottom board and axle housing or the crossbeam, thereby realization the purpose of this utility model.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with following embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of traditional drum brake;
Fig. 2 is the schematic representation of the assembly structure of traditional braking bottom board of expression and axle housing;
Fig. 3 is the sectional view according to the braking bottom board of the utility model preferred implementation;
Fig. 4 is the plan view of braking bottom board shown in Figure 3; With
Fig. 5 is the sectional view of the assembly that is assembled together according to the braking bottom board and the axle housing of the utility model preferred implementation.
The description of reference numerals of critical piece
Support pin-and-hole 14
The through hole 16 of stiffening plate
Cam supported hole 17
The through hole 18 of cam supporting base
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As shown in Figure 3 and Figure 4, braking bottom board provided by the utility model, this braking bottom board comprises body 31, wherein, described body 31 has center mounting hole 32, be formed with flange 13 at the edge of this center mounting hole 32, this flange 13 extends also outstanding along the central axial direction that is parallel to described center mounting hole 32 around the edge of described center mounting hole 32.
The body 31 that the center mounting hole 32 of body 31 is used to realize braking bottom board is to the axle housing of ransaxle or the installation on the crossbeam of ransaxle, and this will be described in conjunction with the braking bottom board assembly hereinafter.
Compare with the braking bottom board of traditional circular external frame, in braking bottom board provided by the utility model, be provided with along the outstanding flange 13 of the central axial direction that is parallel to described center mounting hole 32 at the edge of center mounting hole 32.Therefore, when this braking bottom board is assembled together with axle housing or crossbeam by the center mounting hole 32 with flange 13, the existence of flange 13 can increase the area that is connected between braking bottom board and axle housing or the crossbeam, improve the stress of braking bottom board (body 31) at center mounting hole 32 places and axle housing or crossbeam, and then obtain to be connected more reliably between braking bottom board and axle housing or the crossbeam, thereby realization the purpose of this utility model.
The length that flange 13 extends along the direction of the central axis that is parallel to center mounting hole 32 can be selected according to concrete workplace.For example, the length of this flange 13 can be 10 millimeters to 25 millimeters.
In addition, utilize, be particularly useful for the body 31 of braking bottom board is fixedly attached to the situation of axle housing by the mode of welding, as shown in Figure 5 at the set flange 13 of the edge of center mounting hole 32.About the body 31 of braking bottom board with as being connected welding and will being described hereinafter between the axle housing 100.
The body 31 of braking bottom board can process by several different methods, makes as cast inblock, forging or impact briquetting.Preferably, described body 31 is formed by metallic plate punching, and the thickness of described body 31 is 4 millimeters to 10 millimeters, therefore compares with cast-in-block technology, can realize relatively low processing cost.Simultaneously, the thickness of the body 31 by making braking bottom board is positioned at thicker scope relatively, be specially 4 millimeters to 10 millimeters, thereby can guarantee to utilize the braking bottom board that metal foil is stamped to form to have higher relatively structural rigidity and intensity on the one hand, can guarantee the stampability of metal foil on the other hand, easily metal foil is carried out impact briquetting processing.
The material of metal foil can select to make the traditional material of braking bottom board, as various steel or alloyed steel, for instance, can select 08-II-Z, Q235, Q345 etc.
Further preferably, the thickness of described body 31 can be 5 millimeters to 6 millimeters, to obtain higher structural rigidity, intensity and to obtain to obtain between the stampability preferably balance preferably.
The shape of body 31 can be identical or similar with the shape of the body of traditional braking bottom board, also can be different.For example, in order to be adapted to the installation requirement of braking bottom board, braking bottom board of the present utility model also can be provided with traditional structure characteristics such as cam supported hole usually, no longer these traditional structure characteristics is described in detail here.But, next to the improvements with respect to traditional braking bottom board in the preferred implementation of the present utility model be described in detail.
Preferably, as shown in Figure 3 and Figure 4, described body 31 has the support pin-and-hole 14 of the central axis that deviates from described center mounting hole 32, described braking bottom board comprises the stiffening plate 15 with through hole 16, this stiffening plate 15 is fixedly installed on the described body 31, so that described through hole 16 is aimed at accordingly with support pin-and-hole 14.
Support pin-and-hole 14 and be used to support the parts that pass this support pin-and-hole 14, as the brake shoe bearing pin.Usually center mounting hole 32 is arranged on the central position of body 31, and the position of support pin-and-hole 14 deviates from the central position of body 31 usually, promptly is positioned at a side of center mounting hole 32, as shown in Figure 4.Though at the support pin-and-hole shown in Fig. 4 14 is two, the utility model is not limited to this, and supporting pin-and-hole 14 can also be more or less, and this need be according to concrete application and in addition design alternative.
In order further to strengthen the structural rigidity and the intensity of the body 31 of braking bottom board, preferably, 14 places are provided with stiffening plate 15 at the support pin-and-hole, and this stiffening plate 15 can be fixed on the body 31 in several ways, for example welding (being that stiffening plate 15 can be welded on the body 31) or splicing etc.Perhaps, this stiffening plate 15 can be made into integration with the body 31 of braking bottom board.
As shown in Figure 5, in order to improve the bearing capacity that supports pin-and-hole 14, preferably, support pin-and-hole 14 and with through hole 16 that this support pin-and-hole 14 is aimed in be provided with lining 20, this lining 20 is fixedly connected on the hole wall of described support pin-and-hole 14 and described through hole 16.Because the setting of lining 20, after the parts that will be supported pin-and-hole 14 carryings by this were installed in this supports pin-and-hole 14, the load of these parts at first passed to lining 20, and and then passed to the hole wall of the through hole 16 of the hole wall of support pin-and-hole 14 and stiffening plate 15 again.Thereby, utilize lining 20 can improve the stress that supports pin-and-hole 14, improve the bearing capacity of this support pin-and-hole 14.And, utilize lining 20 also can play the effect of the body 31 of protection braking bottom board.
In addition, as shown in Figure 3 and Figure 4, described body 31 has the cam supported hole 17 of the central axis that deviates from described center mounting hole 32, described braking bottom board comprises the cam supporting base 19 with through hole 18, and this cam supporting base 19 inserts in the described cam supported hole 17 and with described body 31 fixedlys connected.
Be similar to and support pin-and-hole 14, cam supported hole 17 is usually located at a side of center mounting hole 32, but general cam supported hole 17 and support pin-and-hole 14 lay respectively at the both sides of center mounting hole 32, as shown in Figure 4.In other words, center mounting hole 32 is between cam supported hole 17 and support pin-and-hole 14.This is center mounting hole 32 in the braking bottom board, cam supported hole 17 and supports the common arrangement of pin-and-hole 14 that the utility model is not limited to this.
Compare with the braking bottom board of traditional circular external frame, in preferred braking bottom board provided by the utility model, by removing the redundance in the braking bottom board (body 31), thereby form non-circular outer contour shape.
Owing to removed the redundance of braking bottom board, thereby can save the material of braking bottom board, and then reduced cost.In addition, by removing the redundance of braking bottom board, can also reduce braking bottom board in the size of (passing the radial direction as axle housing of braking bottom board) in the radial direction, make the structure of braking bottom board more compact, thereby help the mounting arrangements of each parts on the vehicle bridge.And, by (body 31) redundance of removal braking bottom board, thereby the structural strength and the rigidity of the edge section of braking bottom board can both be strengthened.
The non-circular external frame of the body 31 of braking bottom board can have various ways, and this can be selected design according to the concrete operating mode of braking bottom board 31.For example, the outer contour shape of the body 31 of braking bottom board can be designed as rectangle or square, and preferably this rectangle or foursquare angle are designed for fillet.
For another example, preferably, as described in Figure 4, the outer contour shape of described body 31 is (being similar to) ellipse.On the one hand, the braking bottom board 31 of making oval outer contour shape is comparatively convenient, and on the other hand, the braking bottom board 31 of oval outer contour shape is owing to the part that does not have the shape acute variation, thereby stress is concentrated relatively easy control.
Certainly, the ellipse here should be understood on more wide in range scope, and as should will be to understand on the field of engineering technology, said here ellipse (as shown in Figure 4) be approximate ellipse, be basic ellipse on the whole perhaps, rather than pure elliptical shape on the mathematical meaning.
Preferably, described support pin-and-hole 14 and cam supported hole 17 are positioned on the described oval-shaped long axis direction.That is to say, the outer contour shape that constitutes the body 31 of braking bottom board main body is non-circular, be specially ellipse, described support pin-and-hole 14 at the more relatively material of needs keeps relative more part with cam supported hole 17, thereby described support pin-and-hole 14 and cam supported hole 17 are positioned on the described oval-shaped long axis direction; The redundance of discoidal braking bottom board is removed traditionally simultaneously, mainly is the external lateral portion of (being on the oval-shaped short-axis direction) on the substantially horizontal among Fig. 4 is removed.
According to this structure, can make the shape of braking bottom board more reasonable, the arrangement space of not only saving the automobile chassis can also alleviate the weight of braking bottom board, thereby can overcome the defective of traditional braking base plate.
As mentioned above, the body 31 of braking bottom board provided by the utility model can be fixed by welding on described axle housing or the crossbeam, as shown in Figure 5; But the utility model is not limited to this, and for example, body 31 has the attachment hole 21 that distributes around described center mounting hole 32.Utilize this attachment hole 21, can body 31 removably be fixedly attached on the adpting flange of axle housing flange or knuckle by bolted mode, and need not by the welding mode.
The utility model also provides a kind of braking bottom board assembly, this braking bottom board assembly comprises braking bottom board and the crossbeam or the axle housing 100 that are assembled together with this braking bottom board, wherein, described braking bottom board is an above-mentioned braking bottom board provided by the utility model, and described crossbeam or axle housing 100 extend through the described center mounting hole 32 of described braking bottom board and the outer surface of described flange 13 and described crossbeam or axle housing 100 cooperatively interacts.
As mentioned above, when this braking bottom board is assembled together with axle housing 100 or crossbeam by the center mounting hole 32 with flange 13, described flange 13 cooperatively interacts with the outer surface of described crossbeam or axle housing 100, thereby the existence that makes flange 13 can increase the area that is connected between braking bottom board and axle housing or the crossbeam, improve the stress of braking bottom board (body 31) at center mounting hole 32 places and axle housing or crossbeam, and then obtain to be connected the realization the purpose of this utility model more reliably between braking bottom board and axle housing or the crossbeam.
Figure 5 shows that will be according to the braking bottom board of the utility model preferred implementation and the sectional view of axle housing 100 after being assembled together of ransaxle.As shown in Figure 5, axle housing 100 extends through the center mounting hole 32 of the body 31 of described braking bottom board, and body 31 is welded on the outer surface of crossbeam or axle housing 100, to be fixed together by its flange 13 simultaneously.Simultaneously, because the existence of flange 13 relatively is convenient to fixedly be assemblied on crossbeam or the axle housing 100 by the body 31 of welding method with braking bottom board.
Certainly, the utility model is not limited to this, and described braking bottom board also can link together in the same way with the knuckle that is the steering axle of dead axle.In addition, also can utilize bolt to realize being connected between the body 31 of braking bottom board and the axle housing 100, for example, crossbeam or axle housing 100 have adpting flange, the body 31 of braking bottom board is bolted to connection together with the adpting flange of crossbeam or axle housing 100, thereby braking bottom board is assembled on crossbeam or the axle housing 100.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up by any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the present utility model, and be not limited to the adduction relationship of each claim in claims, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. braking bottom board, this braking bottom board comprises body (31), this body (31) has center mounting hole (32), it is characterized in that, be formed with flange (13) at the edge of this center mounting hole (32), this flange (13) extends also outstanding along the central axial direction that is parallel to described center mounting hole (32) around the edge of described center mounting hole (32).
2. braking bottom board according to claim 1, it is characterized in that, described body (31) has the support pin-and-hole (14) of the central axis that deviates from described center mounting hole (32), described braking bottom board comprises the have through hole stiffening plate (15) of (16), this stiffening plate (15) is fixedly installed on the described body (31), so that described through hole (16) is aimed at described support pin-and-hole (14).
3. braking bottom board according to claim 2, it is characterized in that, described support pin-and-hole (14) and with described through hole (16) that this support pin-and-hole (14) is aimed in be provided with lining (20), this lining (20) is fixed on the hole wall of described support pin-and-hole (14) and described through hole (16).
4. braking bottom board according to claim 2, it is characterized in that, described body (31) has the cam supported hole (17) of the central axis that deviates from described center mounting hole (32), described braking bottom board comprises the have through hole cam supporting base (19) of (18), and this cam supporting base (19) inserts in described cam supported hole (17) and with described body (31) fixedlys connected.
5. braking bottom board according to claim 4 is characterized in that, the outer contour shape of described body (31) is oval.
6. braking bottom board according to claim 5 is characterized in that, wherein, described support pin-and-hole (14) and cam supported hole (17) are positioned on the described oval-shaped long axis direction.
7. braking bottom board according to claim 1 is characterized in that, described body (31) has around the equally distributed attachment hole of described center mounting hole (32) (21).
8. braking bottom board according to claim 1 is characterized in that, described body (31) is formed by metallic plate punching, and the thickness of described body (31) is 4 millimeters to 10 millimeters.
9. braking bottom board assembly, this braking bottom board assembly comprises braking bottom board and the crossbeam or the axle housing (100) that are assembled together with described braking bottom board, it is characterized in that, described braking bottom board is according to any described braking bottom board among the claim 1-8, described crossbeam or axle housing (100) extend through the described center mounting hole (32) of described braking bottom board, and the outer surface of described flange (13) and described crossbeam or axle housing (100) cooperatively interacts.
10. braking bottom board assembly according to claim 9 is characterized in that, the described flange of described braking bottom board is welded on the outer surface of described crossbeam or axle housing (100); Perhaps, described crossbeam or axle housing (100) have adpting flange, and described braking bottom board is assembled on described crossbeam or the axle housing (100) by this adpting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205825703U CN201858289U (en) | 2010-10-26 | 2010-10-26 | Brake bottom plate and brake bottom plate component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205825703U CN201858289U (en) | 2010-10-26 | 2010-10-26 | Brake bottom plate and brake bottom plate component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858289U true CN201858289U (en) | 2011-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205825703U Expired - Fee Related CN201858289U (en) | 2010-10-26 | 2010-10-26 | Brake bottom plate and brake bottom plate component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858289U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996687A (en) * | 2012-12-04 | 2013-03-27 | 重庆市双桥区中帝汽车配件制造有限公司 | Freight car drum brake impulse welding bottom plate and forming process thereof |
| CN103661347A (en) * | 2013-12-07 | 2014-03-26 | 广东富华重工制造有限公司 | Rear axle housing with high-intensity brake bottom plates |
| CN109236900A (en) * | 2018-11-08 | 2019-01-18 | 湖南中联重科车桥有限公司 | Back-plate, brake apparatus and vehicle bridge component |
| CN111890844A (en) * | 2020-08-14 | 2020-11-06 | 中国重汽集团济南动力有限公司 | Brake bottom plate integrated axle housing assembly |
-
2010
- 2010-10-26 CN CN2010205825703U patent/CN201858289U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996687A (en) * | 2012-12-04 | 2013-03-27 | 重庆市双桥区中帝汽车配件制造有限公司 | Freight car drum brake impulse welding bottom plate and forming process thereof |
| CN102996687B (en) * | 2012-12-04 | 2015-07-29 | 重庆中帝机械制造股份有限公司 | Wagon drum brake device punching weldering base plate and moulding process thereof |
| CN103661347A (en) * | 2013-12-07 | 2014-03-26 | 广东富华重工制造有限公司 | Rear axle housing with high-intensity brake bottom plates |
| CN109236900A (en) * | 2018-11-08 | 2019-01-18 | 湖南中联重科车桥有限公司 | Back-plate, brake apparatus and vehicle bridge component |
| CN111890844A (en) * | 2020-08-14 | 2020-11-06 | 中国重汽集团济南动力有限公司 | Brake bottom plate integrated axle housing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20171026 |